@graphql-mesh/config
Version:
199 lines (198 loc) • 7.22 kB
JavaScript
import { paramCase } from 'param-case';
import { path } from '@graphql-mesh/cross-helpers';
import { DefaultLogger, parseWithCache, PubSub } from '@graphql-mesh/utils';
import { CodeFileLoader } from '@graphql-tools/code-file-loader';
import { GraphQLFileLoader } from '@graphql-tools/graphql-file-loader';
import { loadDocuments, loadTypedefs } from '@graphql-tools/load';
import { printSchemaWithDirectives } from '@graphql-tools/utils';
import { crypto, fetch as defaultFetch, TextEncoder } from '@whatwg-node/fetch';
export async function getPackage({ name, type, importFn, cwd, additionalPrefixes = [], }) {
const casedName = paramCase(name);
const casedType = paramCase(type);
const prefixes = ['@graphql-mesh/', ...additionalPrefixes];
const initialPossibleNames = [
casedName,
`${casedName}-${casedType}`,
`${casedType}-${casedName}`,
casedType,
];
const possibleNames = [];
for (const prefix of prefixes) {
for (const possibleName of initialPossibleNames) {
possibleNames.push(`${prefix}${possibleName}`);
}
}
for (const possibleName of initialPossibleNames) {
possibleNames.push(possibleName);
}
if (name.includes('-')) {
possibleNames.push(name);
}
const possibleModules = possibleNames.concat(path.resolve(cwd, name));
for (const moduleName of possibleModules) {
try {
const exported = await importFn(moduleName, true);
const resolved = exported.default || exported;
const relativeModuleName = path.isAbsolute(moduleName) ? name : moduleName;
return {
moduleName: relativeModuleName,
resolved,
};
}
catch (err) {
const error = err;
if (!error.message.includes(`Cannot find module '${moduleName}'`) &&
!error.message.includes(`Cannot find package '${moduleName}'`) &&
!error.message.includes(`Could not locate module`)) {
throw new Error(`Unable to load ${type} matching ${name} while resolving ${moduleName}: ${error.stack}`);
}
}
}
throw new Error(`Unable to find ${type} matching ${name}`);
}
export async function resolveAdditionalTypeDefs(baseDir, additionalTypeDefs) {
if (additionalTypeDefs) {
const sources = await loadTypedefs(additionalTypeDefs, {
cwd: baseDir,
loaders: [new CodeFileLoader(), new GraphQLFileLoader()],
});
return sources.map(source => source.document ||
parseWithCache(source.rawSDL || printSchemaWithDirectives(source.schema)));
}
return undefined;
}
export async function resolveCustomFetch({ fetchConfig, importFn, cwd, cache, additionalPackagePrefixes, }) {
if (!fetchConfig) {
return {
fetchFn: defaultFetch,
code: `const fetchFn = await import('@whatwg-node/fetch').then(m => m?.fetch || m);`,
};
}
const { moduleName, resolved: fetchFn } = await getPackage({
name: fetchConfig,
type: 'fetch',
importFn,
cwd,
additionalPrefixes: additionalPackagePrefixes,
});
const processedModuleName = moduleName.startsWith('.') ? path.join('..', moduleName) : moduleName;
const code = `const fetchFn = await import(${JSON.stringify(processedModuleName)}).then(m => m?.fetch || m);`;
return {
fetchFn,
code,
};
}
export async function resolveCache(cacheConfig = {
localforage: {},
}, importFn, rootStore, cwd, pubsub, logger, additionalPackagePrefixes) {
const cacheName = Object.keys(cacheConfig)[0].toString();
const config = cacheConfig[cacheName];
const { moduleName, resolved: Cache } = await getPackage({
name: cacheName,
type: 'cache',
importFn,
cwd,
additionalPrefixes: additionalPackagePrefixes,
});
const cache = new Cache({
...config,
importFn,
store: rootStore.child('cache'),
pubsub,
logger,
});
const code = `const MeshCache = await import(${JSON.stringify(moduleName)}).then(handleImport);
const cache = new MeshCache({
...${JSON.stringify(config)},
importFn,
store: rootStore.child('cache'),
pubsub,
logger,
})`;
return {
cache,
code,
};
}
export async function resolvePubSub(pubsubYamlConfig, importFn, cwd, additionalPackagePrefixes) {
if (pubsubYamlConfig) {
let pubsubName;
let pubsubConfig;
if (typeof pubsubYamlConfig === 'string') {
pubsubName = pubsubYamlConfig;
}
else {
pubsubName = pubsubYamlConfig.name;
pubsubConfig = pubsubYamlConfig.config;
}
const { moduleName, resolved: PubSub } = await getPackage({
name: pubsubName,
type: 'pubsub',
importFn,
cwd,
additionalPrefixes: additionalPackagePrefixes,
});
const pubsub = new PubSub(pubsubConfig);
const code = `const PubSub = await import(${JSON.stringify(moduleName)}).then(handleImport);
const pubsub = new PubSub(${JSON.stringify(pubsubConfig)});`;
return {
code,
importCode: '',
pubsub,
};
}
else {
const pubsub = new PubSub();
const code = `const pubsub = new PubSub();`;
return {
code,
importCode: `import { PubSub } from '@graphql-mesh/utils';`,
pubsub,
};
}
}
export async function resolveDocuments(documentsConfig, cwd) {
if (!documentsConfig) {
return [];
}
return loadDocuments(documentsConfig, {
loaders: [new CodeFileLoader(), new GraphQLFileLoader()],
skipGraphQLImport: true,
cwd,
});
}
export async function resolveLogger(loggerConfig, importFn, cwd, additionalPackagePrefixes, initialLoggerPrefix = '') {
if (loggerConfig) {
const { moduleName, resolved: logger } = await getPackage({
name: loggerConfig,
type: 'logger',
importFn,
cwd,
additionalPrefixes: additionalPackagePrefixes,
});
const processedModuleName = moduleName.startsWith('.')
? path.join('..', moduleName)
: moduleName;
return {
logger,
importCode: ``,
code: `const logger = await import(${JSON.stringify(processedModuleName)}).then(handleImport);`,
};
}
const logger = new DefaultLogger(initialLoggerPrefix);
return {
logger,
importCode: `import { DefaultLogger } from '@graphql-mesh/utils';`,
code: `const logger = new DefaultLogger(${JSON.stringify(initialLoggerPrefix)});`,
};
}
export async function hashSHA256(str) {
const textEncoder = new TextEncoder();
const utf8 = textEncoder.encode(str);
const hashBuffer = await crypto.subtle.digest('SHA-256', utf8);
let hashHex = '';
for (const bytes of new Uint8Array(hashBuffer)) {
hashHex += bytes.toString(16).padStart(2, '0');
}
return hashHex;
}