aws4-axios
Version:
Axios request interceptor for signing requests with AWSv4
52 lines (51 loc) • 2.6 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AssumeRoleCredentialsProvider = void 0;
const client_sts_1 = require("@aws-sdk/client-sts");
class AssumeRoleCredentialsProvider {
constructor(options) {
this.options = Object.assign(Object.assign({}, options), { region: options.region || process.env.AWS_REGION, expirationMarginSec: options.expirationMarginSec || 5, roleSessionName: options.roleSessionName || "axios" });
this.sts = new client_sts_1.STSClient({ region: this.options.region });
}
getCredentials() {
return __awaiter(this, void 0, void 0, function* () {
if (!this.credentials || this.areCredentialsExpired()) {
const stsCredentials = yield this.assumeRole();
this.credentials = {
accessKeyId: stsCredentials.AccessKeyId || "",
secretAccessKey: stsCredentials.SecretAccessKey || "",
sessionToken: stsCredentials.SessionToken,
};
this.expiration = stsCredentials.Expiration;
}
return this.credentials;
});
}
areCredentialsExpired() {
return (this.expiration !== undefined &&
new Date().getTime() + this.options.expirationMarginSec * 1000 >=
this.expiration.getTime());
}
assumeRole() {
return __awaiter(this, void 0, void 0, function* () {
const res = yield this.sts.send(new client_sts_1.AssumeRoleCommand({
RoleArn: this.options.roleArn,
RoleSessionName: this.options.roleSessionName,
}));
if (!res.Credentials) {
throw new Error("Failed to get credentials from the assumed role");
}
return res.Credentials;
});
}
}
exports.AssumeRoleCredentialsProvider = AssumeRoleCredentialsProvider;