diff options
| -rw-r--r-- | packages/pipeline/src/parsers/token_metadata/index.ts | 7 | ||||
| -rw-r--r-- | packages/pipeline/src/utils/index.ts | 15 |
2 files changed, 18 insertions, 4 deletions
diff --git a/packages/pipeline/src/parsers/token_metadata/index.ts b/packages/pipeline/src/parsers/token_metadata/index.ts index f258af063..65e0aaa6e 100644 --- a/packages/pipeline/src/parsers/token_metadata/index.ts +++ b/packages/pipeline/src/parsers/token_metadata/index.ts @@ -1,9 +1,8 @@ -import { BigNumber } from '@0x/utils'; import * as R from 'ramda'; import { MetamaskTrustedTokenMeta, ZeroExTrustedTokenMeta } from '../../data_sources/trusted_tokens'; import { TokenMetadata } from '../../entities'; -import {} from '../../utils'; +import { toBigNumberOrNull } from '../../utils'; /** * Parses Metamask's trusted tokens list. @@ -26,7 +25,7 @@ function parseMetamaskTrustedToken(resp: MetamaskTrustedTokenMeta, address: stri const trustedToken = new TokenMetadata(); trustedToken.address = address; - trustedToken.decimals = new BigNumber(resp.decimals); + trustedToken.decimals = toBigNumberOrNull(resp.decimals); trustedToken.symbol = resp.symbol; trustedToken.name = resp.name; trustedToken.authority = 'metamask'; @@ -38,7 +37,7 @@ function parseZeroExTrustedToken(resp: ZeroExTrustedTokenMeta): TokenMetadata { const trustedToken = new TokenMetadata(); trustedToken.address = resp.address; - trustedToken.decimals = resp.decimals ? new BigNumber(resp.decimals) : null; + trustedToken.decimals = toBigNumberOrNull(resp.decimals); trustedToken.symbol = resp.symbol; trustedToken.name = resp.name; trustedToken.authority = '0x'; diff --git a/packages/pipeline/src/utils/index.ts b/packages/pipeline/src/utils/index.ts index 2096a0a39..094c0178e 100644 --- a/packages/pipeline/src/utils/index.ts +++ b/packages/pipeline/src/utils/index.ts @@ -15,6 +15,21 @@ export function bigNumbertoStringOrNull(n: BigNumber): string | null { } /** + * If value is null or undefined, returns null. Otherwise converts value to a + * BigNumber. + * @param value A string or number to be converted to a BigNumber + */ +export function toBigNumberOrNull(value: string | number | null): BigNumber | null { + switch (value) { + case null: + case undefined: + return null; + default: + return new BigNumber(value); + } +} + +/** * Logs an error by intelligently checking for `message` and `stack` properties. * Intended for use with top-level immediately invoked asynchronous functions. * @param e the error to log. |