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apollo-sdk-patterns Apply production-ready Apollo.io SDK patterns.
Use when implementing Apollo integrations, refactoring API usage,
or establishing team coding standards.
Trigger with phrases like "apollo sdk patterns", "apollo best practices",
"apollo code patterns", "idiomatic apollo", "apollo client wrapper".
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name apollo-sdk-patterns description Apply production-ready Apollo.io SDK patterns.
Use when implementing Apollo integrations, refactoring API usage,
or establishing team coding standards.
Trigger with phrases like "apollo sdk patterns", "apollo best practices",
"apollo code patterns", "idiomatic apollo", "apollo client wrapper".
allowed-tools Read, Write, Edit version 1.0.0 license MIT author Jeremy Longshore <jeremy@intentsolutions.io> compatible-with claude-code, codex, openclaw tags ["saas","apollo","api"]
Apollo SDK Patterns
Overview
Production-ready patterns for Apollo.io API integration. Apollo has no official SDK — these patterns wrap the REST API (https://api.apollo.io/api/v1/) with type safety, retry logic, pagination, and bulk operations. All requests use the x-api-key header.
Prerequisites
Completed apollo-install-auth setup
TypeScript 5+ with strict mode
Instructions
Step 1: Type-Safe Client with Zod Validation
import axios, { AxiosInstance } from 'axios' ;
import { z } from 'zod' ;
const ConfigSchema = z.object ({
apiKey : z.string ().min (10 , 'API key too short' ),
baseURL : z.string ().url ().default ('https://api.apollo.io/api/v1' ),
timeout : z.number ().default (30_000 ),
});
let instance : AxiosInstance | null = null ;
export function getApolloClient (config ?: Partial <z.input<typeof ConfigSchema >>AxiosInstance {
if (instance) return
const
ConfigSchema
parse
apiKey
apiKey
env
APOLLO_API_KEY
create
baseURL
baseURL
timeout
timeout
headers
'Content-Type'
'application/json'
'x-api-key'
apiKey
return
export
function
resetClient
null
Step 2: Custom Error Classes
import { AxiosError } from 'axios' ;
export class ApolloApiError extends Error {
constructor (
message : string ,
public statusCode : number ,
public endpoint : string ,
public retryable : boolean ,
public requestId ?: string ,
) {
super (message);
this .name = 'ApolloApiError' ;
}
static fromAxios (err : AxiosError ): ApolloApiError {
const status = err.response ?.status ?? 0 ;
const body = err.response ?.data as any ;
return new ApolloApiError (
body?.message ?? err.message ,
status,
err.config ?.url ?? 'unknown' ,
[429 , 500 , 502 , 503 , 504 ].includes (status),
err.response ?.headers ?.['x-request-id' ],
);
}
}
export class ApolloRateLimitError extends ApolloApiError {
constructor (
public retryAfterMs : number ,
endpoint : string ,
) {
super (`Rate limited on ${endpoint} ` , 429 , endpoint, true );
this .name = 'ApolloRateLimitError' ;
}
}
Step 3: Retry with Exponential Backoff
import { ApolloApiError } from './errors' ;
export async function withRetry<T>(
fn : () => Promise <T>,
opts : { maxRetries ?: number ; baseMs ?: number ; maxMs ?: number } = {},
): Promise <T> {
const { maxRetries = 3 , baseMs = 1000 , maxMs = 30_000 } = opts;
for (let attempt = 0 ; attempt <= maxRetries; attempt++) {
try {
return await fn ();
} catch (err) {
const isRetryable = err instanceof ApolloApiError && err.retryable ;
if (!isRetryable || attempt === maxRetries) throw err;
const jitter = Math .random () * 500 ;
const delay = Math .min (baseMs * 2 ** attempt + jitter, maxMs);
await new Promise ((r ) => setTimeout (r, delay));
}
}
throw new Error ('Unreachable' );
}
Step 4: Async Pagination Iterator Apollo endpoints return pagination.total_entries and accept page/per_page. The People Search API limits to 500 pages (50,000 records).
import { getApolloClient } from './client' ;
import { withRetry } from './retry' ;
export async function * paginate<T>(
endpoint : string ,
body : Record <string , unknown >,
itemKey : string = 'people' ,
perPage : number = 100 ,
maxPages : number = 500 ,
): AsyncGenerator <T[], void , undefined > {
const client = getApolloClient ();
let page = 1 ;
let totalPages = Infinity ;
while (page <= Math .min (totalPages, maxPages)) {
const { data } = await withRetry (() =>
client.post (endpoint, { ...body, page, per_page : perPage }),
);
const items : T[] = data[itemKey] ?? [];
totalPages = data.pagination ?.total_pages ?? 1 ;
if (items.length === 0 ) break ;
yield items;
page++;
}
}
Step 5: Bulk Enrichment with Rate Awareness Apollo's Bulk People Enrichment endpoint handles up to 10 records per call.
import { getApolloClient } from './client' ;
import { withRetry } from './retry' ;
interface EnrichmentDetail {
email ?: string ;
linkedin_url ?: string ;
first_name ?: string ;
last_name ?: string ;
organization_domain ?: string ;
}
export async function bulkEnrichPeople (
details : EnrichmentDetail [],
opts : { revealPersonalEmails?: boolean ; revealPhoneNumber?: boolean } = {},
): Promise <any []> {
const client = getApolloClient ();
const results : any [] = [];
for (let i = 0 ; i < details.length ; i += 10 ) {
const batch = details.slice (i, i + 10 );
const { data } = await withRetry (() =>
client.post ('/people/bulk_match' , {
details : batch,
reveal_personal_emails : opts.revealPersonalEmails ?? false ,
reveal_phone_number : opts.revealPhoneNumber ?? false ,
}),
);
results.push (...(data.matches ?? []));
if (i + 10 < details.length ) {
await new Promise ((r ) => setTimeout (r, 500 ));
}
}
return results;
}
Output
src/apollo/client.ts — Zod-validated singleton with x-api-key headersrc/apollo/errors.ts — ApolloApiError + ApolloRateLimitError with retryable flagsrc/apollo/retry.ts — Exponential backoff with jittersrc/apollo/paginator.ts — Async generator for paginated endpoints (500-page limit)src/apollo/bulk-enrich.ts — Batch enrichment via /people/bulk_match (10 per call)
Error Handling Pattern When to Use Singleton client Always — one client instance per process Retry 429 rate limits, 5xx server errors Pagination Search results > 100 records Bulk enrichment Multiple contacts need email/phone data Custom errors Typed catch blocks distinguishing auth vs rate limit vs server
Examples
Full Pipeline: Search, Paginate, Enrich import { paginate } from './apollo/paginator' ;
import { bulkEnrichPeople } from './apollo/bulk-enrich' ;
async function enrichLeadsAtCompany (domain : string const allPeople : any [] = [];
for await (const batch of paginate ('/mixed_people/api_search' , {
q_organization_domains_list : [domain],
person_seniorities : ['vp' , 'director' , 'c_suite' ],
})) {
allPeople.push (...batch);
}
console .log (`Found ${allPeople.length} decision-makers at ${domain} ` );
const toEnrich = allPeople
.filter ((p ) => !p.email && p.linkedin_url )
.map ((p ) => ({ linkedin_url : p.linkedin_url }));
const enriched = await bulkEnrichPeople (toEnrich);
console .log (`Enriched ${enriched.length} contacts` );
}
Resources
Next Steps Proceed to apollo-core-workflow-a for lead search implementation.
